Impeller Design of a Centrifugal Fan with Blade Optimization

Table 3

Fan performance data obtained from impeller/volute coupling CFD with the shroud gap.

Fan	Shaft power/PWRref	Imp PWRout/PWRref	del_Pt/𝑃ref	Effimp (%)	Efffan (%)	Width/D	Ps lift/𝑃ref	Pt lift/𝑃ref	Loss/𝑃ref	Eff_lift (total) (%)	Eff_lift (static) (%)	Lift Flow (%)
B#1	0.929	0.853	1.434	91.8	77.2	0.1208	1.205	1.243	0.190	0.449	0.435	56.4
B#2	0.873	0.768	1.292	88.0	73.6	0.1350	1.056	1.094	0.198	0.413	0.399	55.8
NEW-x	0.848	0.756	1.272	89.2	77.8	0.1213	1.100	1.140	0.132	0.453	0.437	56.5